+++ /dev/null
-/*++\r
- \r
-Copyright (c) 2006, Intel Corporation \r
-All rights reserved. This program and the accompanying materials \r
-are licensed and made available under the terms and conditions of the BSD License \r
-which accompanies this distribution. The full text of the license may be found at \r
-http://opensource.org/licenses/bsd-license.php \r
- \r
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
-\r
-Module Name:\r
-\r
- PciIo.c\r
- \r
-Abstract:\r
-\r
- PCI I/O Abstraction Driver\r
-\r
-Revision History\r
-\r
---*/\r
-\r
-#include "pcibus.h"\r
-\r
-//\r
-// Internal use only\r
-//\r
-STATIC\r
-EFI_STATUS\r
-ReportErrorStatusCode (\r
- IN PCI_IO_DEVICE *PciIoDevice,\r
- IN EFI_STATUS_CODE_VALUE Code\r
- );\r
-\r
-//\r
-// PCI I/O Support Function Prototypes\r
-//\r
-//\r
-//\r
-// Pci Io Protocol Interface\r
-//\r
-static EFI_PCI_IO_PROTOCOL PciIoInterface = {\r
- PciIoPollMem,\r
- PciIoPollIo,\r
- {\r
- PciIoMemRead,\r
- PciIoMemWrite\r
- },\r
- {\r
- PciIoIoRead,\r
- PciIoIoWrite\r
- },\r
- {\r
- PciIoConfigRead,\r
- PciIoConfigWrite\r
- },\r
- PciIoCopyMem,\r
- PciIoMap,\r
- PciIoUnmap,\r
- PciIoAllocateBuffer,\r
- PciIoFreeBuffer,\r
- PciIoFlush,\r
- PciIoGetLocation,\r
- PciIoAttributes,\r
- PciIoGetBarAttributes,\r
- PciIoSetBarAttributes,\r
- 0,\r
- NULL\r
-};\r
-\r
-STATIC\r
-EFI_STATUS\r
-ReportErrorStatusCode (\r
- IN PCI_IO_DEVICE *PciIoDevice,\r
- IN EFI_STATUS_CODE_VALUE Code\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- report a error Status code of PCI bus driver controller\r
-\r
-Arguments:\r
- \r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: PciIoDevice - add argument and description to function comment\r
-// TODO: Code - add argument and description to function comment\r
-{\r
- return REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r
- EFI_ERROR_CODE | EFI_ERROR_MINOR,\r
- Code,\r
- PciIoDevice->DevicePath\r
- );\r
-}\r
-\r
-EFI_STATUS\r
-InitializePciIoInstance (\r
- PCI_IO_DEVICE *PciIoDevice\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Initializes a PCI I/O Instance\r
-\r
-Arguments:\r
- \r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: PciIoDevice - add argument and description to function comment\r
-// TODO: EFI_SUCCESS - add return value to function comment\r
-{\r
- CopyMem (&PciIoDevice->PciIo, &PciIoInterface, sizeof (EFI_PCI_IO_PROTOCOL));\r
- return EFI_SUCCESS;\r
-}\r
-\r
-EFI_STATUS\r
-PciIoVerifyBarAccess (\r
- PCI_IO_DEVICE *PciIoDevice,\r
- UINT8 BarIndex,\r
- PCI_BAR_TYPE Type,\r
- IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r
- IN UINTN Count,\r
- UINT64 *Offset\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Verifies access to a PCI Base Address Register (BAR)\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: PciIoDevice - add argument and description to function comment\r
-// TODO: BarIndex - add argument and description to function comment\r
-// TODO: Type - add argument and description to function comment\r
-// TODO: Width - add argument and description to function comment\r
-// TODO: Count - add argument and description to function comment\r
-// TODO: Offset - add argument and description to function comment\r
-// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
-// TODO: EFI_SUCCESS - add return value to function comment\r
-// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
-// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
-// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
-// TODO: EFI_SUCCESS - add return value to function comment\r
-{\r
- if (Width < 0 || Width >= EfiPciIoWidthMaximum) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (BarIndex == EFI_PCI_IO_PASS_THROUGH_BAR) {\r
- return EFI_SUCCESS;\r
- }\r
-\r
- //\r
- // BarIndex 0-5 is legal\r
- //\r
- if (BarIndex >= PCI_MAX_BAR) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (!CheckBarType (PciIoDevice, BarIndex, Type)) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- //\r
- // If Width is EfiPciIoWidthFifoUintX then convert to EfiPciIoWidthUintX\r
- // If Width is EfiPciIoWidthFillUintX then convert to EfiPciIoWidthUintX\r
- //\r
- if (Width >= EfiPciWidthFifoUint8 && Width <= EfiPciWidthFifoUint64) {\r
- Count = 1;\r
- }\r
-\r
- Width = (EFI_PCI_IO_PROTOCOL_WIDTH) (Width & 0x03);\r
-\r
- if ((*Offset + Count * (UINTN)(1 << Width)) - 1 >= PciIoDevice->PciBar[BarIndex].Length) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- *Offset = *Offset + PciIoDevice->PciBar[BarIndex].BaseAddress;\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-EFI_STATUS\r
-PciIoVerifyConfigAccess (\r
- PCI_IO_DEVICE *PciIoDevice,\r
- IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r
- IN UINTN Count,\r
- IN UINT64 *Offset\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Verifies access to a PCI Config Header\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: PciIoDevice - add argument and description to function comment\r
-// TODO: Width - add argument and description to function comment\r
-// TODO: Count - add argument and description to function comment\r
-// TODO: Offset - add argument and description to function comment\r
-// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-// TODO: EFI_SUCCESS - add return value to function comment\r
-{\r
- UINT64 ExtendOffset;\r
-\r
- if (Width < 0 || Width >= EfiPciIoWidthMaximum) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- //\r
- // If Width is EfiPciIoWidthFillUintX then convert to EfiPciIoWidthUintX\r
- //\r
- Width = (EFI_PCI_IO_PROTOCOL_WIDTH) (Width & 0x03);\r
-\r
- if (PciIoDevice->IsPciExp) {\r
- if ((*Offset + Count * (UINTN)(1 << Width)) - 1 >= PCI_EXP_MAX_CONFIG_OFFSET) {\r
- return EFI_UNSUPPORTED;\r
- }\r
-\r
- ExtendOffset = LShiftU64 (*Offset, 32);\r
- *Offset = EFI_PCI_ADDRESS (PciIoDevice->BusNumber, PciIoDevice->DeviceNumber, PciIoDevice->FunctionNumber, 0);\r
- *Offset = (*Offset) | ExtendOffset;\r
-\r
- } else {\r
- if ((*Offset + Count * (UINTN)(1 << Width)) - 1 >= PCI_MAX_CONFIG_OFFSET) {\r
- return EFI_UNSUPPORTED;\r
- }\r
-\r
- *Offset = EFI_PCI_ADDRESS (PciIoDevice->BusNumber, PciIoDevice->DeviceNumber, PciIoDevice->FunctionNumber, *Offset);\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PciIoPollMem (\r
- IN EFI_PCI_IO_PROTOCOL *This,\r
- IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r
- IN UINT8 BarIndex,\r
- IN UINT64 Offset,\r
- IN UINT64 Mask,\r
- IN UINT64 Value,\r
- IN UINT64 Delay,\r
- OUT UINT64 *Result\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Poll PCI Memmory\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: This - add argument and description to function comment\r
-// TODO: Width - add argument and description to function comment\r
-// TODO: BarIndex - add argument and description to function comment\r
-// TODO: Offset - add argument and description to function comment\r
-// TODO: Mask - add argument and description to function comment\r
-// TODO: Value - add argument and description to function comment\r
-// TODO: Delay - add argument and description to function comment\r
-// TODO: Result - add argument and description to function comment\r
-// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
-{\r
- EFI_STATUS Status;\r
- PCI_IO_DEVICE *PciIoDevice;\r
-\r
- PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r
-\r
- if (Width < 0 || Width >= EfiPciIoWidthMaximum) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- Status = PciIoVerifyBarAccess (PciIoDevice, BarIndex, PciBarTypeMem, Width, 1, &Offset);\r
- if (EFI_ERROR (Status)) {\r
- return EFI_UNSUPPORTED;\r
- }\r
-\r
- if (Width > EfiPciIoWidthUint64) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- Status = PciIoDevice->PciRootBridgeIo->PollMem (\r
- PciIoDevice->PciRootBridgeIo,\r
- (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,\r
- Offset,\r
- Mask,\r
- Value,\r
- Delay,\r
- Result\r
- );\r
-\r
- if (EFI_ERROR (Status)) {\r
- ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_CONTROLLER_ERROR);\r
- }\r
-\r
- return Status;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PciIoPollIo (\r
- IN EFI_PCI_IO_PROTOCOL *This,\r
- IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r
- IN UINT8 BarIndex,\r
- IN UINT64 Offset,\r
- IN UINT64 Mask,\r
- IN UINT64 Value,\r
- IN UINT64 Delay,\r
- OUT UINT64 *Result\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Poll PCI IO\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: This - add argument and description to function comment\r
-// TODO: Width - add argument and description to function comment\r
-// TODO: BarIndex - add argument and description to function comment\r
-// TODO: Offset - add argument and description to function comment\r
-// TODO: Mask - add argument and description to function comment\r
-// TODO: Value - add argument and description to function comment\r
-// TODO: Delay - add argument and description to function comment\r
-// TODO: Result - add argument and description to function comment\r
-// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
-{\r
- EFI_STATUS Status;\r
- PCI_IO_DEVICE *PciIoDevice;\r
-\r
- PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r
-\r
- if (Width < 0 || Width > EfiPciIoWidthUint64) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- Status = PciIoVerifyBarAccess (PciIoDevice, BarIndex, PciBarTypeIo, Width, 1, &Offset);\r
- if (EFI_ERROR (Status)) {\r
- return EFI_UNSUPPORTED;\r
- }\r
-\r
- Status = PciIoDevice->PciRootBridgeIo->PollIo (\r
- PciIoDevice->PciRootBridgeIo,\r
- (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,\r
- Offset,\r
- Mask,\r
- Value,\r
- Delay,\r
- Result\r
- );\r
-\r
- if (EFI_ERROR (Status)) {\r
- ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_CONTROLLER_ERROR);\r
- }\r
-\r
- return Status;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PciIoMemRead (\r
- IN EFI_PCI_IO_PROTOCOL *This,\r
- IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r
- IN UINT8 BarIndex,\r
- IN UINT64 Offset,\r
- IN UINTN Count,\r
- IN OUT VOID *Buffer\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Performs a PCI Memory Read Cycle\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: This - add argument and description to function comment\r
-// TODO: Width - add argument and description to function comment\r
-// TODO: BarIndex - add argument and description to function comment\r
-// TODO: Offset - add argument and description to function comment\r
-// TODO: Count - add argument and description to function comment\r
-// TODO: Buffer - add argument and description to function comment\r
-// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-{\r
- EFI_STATUS Status;\r
- PCI_IO_DEVICE *PciIoDevice;\r
-\r
- PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r
-\r
- if (Width < 0 || Width >= EfiPciIoWidthMaximum) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- Status = PciIoVerifyBarAccess (PciIoDevice, BarIndex, PciBarTypeMem, Width, Count, &Offset);\r
- if (EFI_ERROR (Status)) {\r
- return EFI_UNSUPPORTED;\r
- }\r
-\r
- Status = PciIoDevice->PciRootBridgeIo->Mem.Read (\r
- PciIoDevice->PciRootBridgeIo,\r
- (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,\r
- Offset,\r
- Count,\r
- Buffer\r
- );\r
-\r
- if (EFI_ERROR (Status)) {\r
- ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_READ_ERROR);\r
- }\r
-\r
- return Status;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PciIoMemWrite (\r
- IN EFI_PCI_IO_PROTOCOL *This,\r
- IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r
- IN UINT8 BarIndex,\r
- IN UINT64 Offset,\r
- IN UINTN Count,\r
- IN OUT VOID *Buffer\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Performs a PCI Memory Write Cycle\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: This - add argument and description to function comment\r
-// TODO: Width - add argument and description to function comment\r
-// TODO: BarIndex - add argument and description to function comment\r
-// TODO: Offset - add argument and description to function comment\r
-// TODO: Count - add argument and description to function comment\r
-// TODO: Buffer - add argument and description to function comment\r
-// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-{\r
- EFI_STATUS Status;\r
- PCI_IO_DEVICE *PciIoDevice;\r
-\r
- PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r
-\r
- if (Width < 0 || Width >= EfiPciIoWidthMaximum) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- Status = PciIoVerifyBarAccess (PciIoDevice, BarIndex, PciBarTypeMem, Width, Count, &Offset);\r
- if (EFI_ERROR (Status)) {\r
- return EFI_UNSUPPORTED;\r
- }\r
-\r
- Status = PciIoDevice->PciRootBridgeIo->Mem.Write (\r
- PciIoDevice->PciRootBridgeIo,\r
- (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,\r
- Offset,\r
- Count,\r
- Buffer\r
- );\r
-\r
- if (EFI_ERROR (Status)) {\r
- ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_WRITE_ERROR);\r
- }\r
-\r
- return Status;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PciIoIoRead (\r
- IN EFI_PCI_IO_PROTOCOL *This,\r
- IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r
- IN UINT8 BarIndex,\r
- IN UINT64 Offset,\r
- IN UINTN Count,\r
- IN OUT VOID *Buffer\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Performs a PCI I/O Read Cycle\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: This - add argument and description to function comment\r
-// TODO: Width - add argument and description to function comment\r
-// TODO: BarIndex - add argument and description to function comment\r
-// TODO: Offset - add argument and description to function comment\r
-// TODO: Count - add argument and description to function comment\r
-// TODO: Buffer - add argument and description to function comment\r
-// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-{\r
- EFI_STATUS Status;\r
- PCI_IO_DEVICE *PciIoDevice;\r
-\r
- PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r
-\r
- if (Width < 0 || Width >= EfiPciIoWidthMaximum) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- Status = PciIoVerifyBarAccess (PciIoDevice, BarIndex, PciBarTypeIo, Width, Count, &Offset);\r
- if (EFI_ERROR (Status)) {\r
- return EFI_UNSUPPORTED;\r
- }\r
-\r
- Status = PciIoDevice->PciRootBridgeIo->Io.Read (\r
- PciIoDevice->PciRootBridgeIo,\r
- (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,\r
- Offset,\r
- Count,\r
- Buffer\r
- );\r
-\r
- if (EFI_ERROR (Status)) {\r
- ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_READ_ERROR);\r
- }\r
-\r
- return Status;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PciIoIoWrite (\r
- IN EFI_PCI_IO_PROTOCOL *This,\r
- IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r
- IN UINT8 BarIndex,\r
- IN UINT64 Offset,\r
- IN UINTN Count,\r
- IN OUT VOID *Buffer\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Performs a PCI I/O Write Cycle\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: This - add argument and description to function comment\r
-// TODO: Width - add argument and description to function comment\r
-// TODO: BarIndex - add argument and description to function comment\r
-// TODO: Offset - add argument and description to function comment\r
-// TODO: Count - add argument and description to function comment\r
-// TODO: Buffer - add argument and description to function comment\r
-// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-{\r
- EFI_STATUS Status;\r
- PCI_IO_DEVICE *PciIoDevice;\r
-\r
- PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r
-\r
- if (Width < 0 || Width >= EfiPciIoWidthMaximum) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- Status = PciIoVerifyBarAccess (PciIoDevice, BarIndex, PciBarTypeIo, Width, Count, &Offset);\r
- if (EFI_ERROR (Status)) {\r
- return EFI_UNSUPPORTED;\r
- }\r
-\r
- Status = PciIoDevice->PciRootBridgeIo->Io.Write (\r
- PciIoDevice->PciRootBridgeIo,\r
- (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,\r
- Offset,\r
- Count,\r
- Buffer\r
- );\r
-\r
- if (EFI_ERROR (Status)) {\r
- ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_WRITE_ERROR);\r
- }\r
-\r
- return Status;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PciIoConfigRead (\r
- IN EFI_PCI_IO_PROTOCOL *This,\r
- IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r
- IN UINT32 Offset,\r
- IN UINTN Count,\r
- IN OUT VOID *Buffer\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Performs a PCI Configuration Read Cycle\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: This - add argument and description to function comment\r
-// TODO: Width - add argument and description to function comment\r
-// TODO: Offset - add argument and description to function comment\r
-// TODO: Count - add argument and description to function comment\r
-// TODO: Buffer - add argument and description to function comment\r
-{\r
- EFI_STATUS Status;\r
- PCI_IO_DEVICE *PciIoDevice;\r
- UINT64 Address;\r
-\r
- PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r
-\r
- Address = Offset;\r
- Status = PciIoVerifyConfigAccess (PciIoDevice, Width, Count, &Address);\r
- if (EFI_ERROR (Status)) {\r
- return Status;\r
- }\r
-\r
- Status = PciIoDevice->PciRootBridgeIo->Pci.Read (\r
- PciIoDevice->PciRootBridgeIo,\r
- (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,\r
- Address,\r
- Count,\r
- Buffer\r
- );\r
-\r
- if (EFI_ERROR (Status)) {\r
- ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_READ_ERROR);\r
- }\r
-\r
- return Status;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PciIoConfigWrite (\r
- IN EFI_PCI_IO_PROTOCOL *This,\r
- IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r
- IN UINT32 Offset,\r
- IN UINTN Count,\r
- IN OUT VOID *Buffer\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Performs a PCI Configuration Write Cycle\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: This - add argument and description to function comment\r
-// TODO: Width - add argument and description to function comment\r
-// TODO: Offset - add argument and description to function comment\r
-// TODO: Count - add argument and description to function comment\r
-// TODO: Buffer - add argument and description to function comment\r
-{\r
- EFI_STATUS Status;\r
- PCI_IO_DEVICE *PciIoDevice;\r
- UINT64 Address;\r
-\r
- PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r
-\r
- Address = Offset;\r
- Status = PciIoVerifyConfigAccess (PciIoDevice, Width, Count, &Address);\r
- if (EFI_ERROR (Status)) {\r
- return Status;\r
- }\r
-\r
- Status = PciIoDevice->PciRootBridgeIo->Pci.Write (\r
- PciIoDevice->PciRootBridgeIo,\r
- (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,\r
- Address,\r
- Count,\r
- Buffer\r
- );\r
-\r
- if (EFI_ERROR (Status)) {\r
- ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_WRITE_ERROR);\r
- }\r
-\r
- return Status;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PciIoCopyMem (\r
- IN EFI_PCI_IO_PROTOCOL *This,\r
- IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r
- IN UINT8 DestBarIndex,\r
- IN UINT64 DestOffset,\r
- IN UINT8 SrcBarIndex,\r
- IN UINT64 SrcOffset,\r
- IN UINTN Count\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Copy PCI Memory\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: This - add argument and description to function comment\r
-// TODO: Width - add argument and description to function comment\r
-// TODO: DestBarIndex - add argument and description to function comment\r
-// TODO: DestOffset - add argument and description to function comment\r
-// TODO: SrcBarIndex - add argument and description to function comment\r
-// TODO: SrcOffset - add argument and description to function comment\r
-// TODO: Count - add argument and description to function comment\r
-// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
-// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-{\r
- EFI_STATUS Status;\r
- PCI_IO_DEVICE *PciIoDevice;\r
-\r
- PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r
-\r
- if (Width < 0 || Width >= EfiPciIoWidthMaximum) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (Width == EfiPciIoWidthFifoUint8 ||\r
- Width == EfiPciIoWidthFifoUint16 ||\r
- Width == EfiPciIoWidthFifoUint32 ||\r
- Width == EfiPciIoWidthFifoUint64 ||\r
- Width == EfiPciIoWidthFillUint8 ||\r
- Width == EfiPciIoWidthFillUint16 ||\r
- Width == EfiPciIoWidthFillUint32 ||\r
- Width == EfiPciIoWidthFillUint64) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- Status = PciIoVerifyBarAccess (PciIoDevice, DestBarIndex, PciBarTypeMem, Width, Count, &DestOffset);\r
- if (EFI_ERROR (Status)) {\r
- return EFI_UNSUPPORTED;\r
- }\r
-\r
- Status = PciIoVerifyBarAccess (PciIoDevice, SrcBarIndex, PciBarTypeMem, Width, Count, &SrcOffset);\r
- if (EFI_ERROR (Status)) {\r
- return EFI_UNSUPPORTED;\r
- }\r
-\r
- Status = PciIoDevice->PciRootBridgeIo->CopyMem (\r
- PciIoDevice->PciRootBridgeIo,\r
- (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,\r
- DestOffset,\r
- SrcOffset,\r
- Count\r
- );\r
-\r
- if (EFI_ERROR (Status)) {\r
- ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_CONTROLLER_ERROR);\r
- }\r
-\r
- return Status;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PciIoMap (\r
- IN EFI_PCI_IO_PROTOCOL *This,\r
- IN EFI_PCI_IO_PROTOCOL_OPERATION Operation,\r
- IN VOID *HostAddress,\r
- IN OUT UINTN *NumberOfBytes,\r
- OUT EFI_PHYSICAL_ADDRESS *DeviceAddress,\r
- OUT VOID **Mapping\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Maps a memory region for DMA\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: This - add argument and description to function comment\r
-// TODO: Operation - add argument and description to function comment\r
-// TODO: HostAddress - add argument and description to function comment\r
-// TODO: NumberOfBytes - add argument and description to function comment\r
-// TODO: DeviceAddress - add argument and description to function comment\r
-// TODO: Mapping - add argument and description to function comment\r
-// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
-// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
-{\r
- EFI_STATUS Status;\r
- PCI_IO_DEVICE *PciIoDevice;\r
-\r
- PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r
-\r
- if (Operation < 0 || Operation >= EfiPciIoOperationMaximum) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (HostAddress == NULL || NumberOfBytes == NULL || DeviceAddress == NULL || Mapping == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (PciIoDevice->Attributes & EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE) {\r
- Operation = (EFI_PCI_IO_PROTOCOL_OPERATION) (Operation + EfiPciOperationBusMasterRead64);\r
- }\r
-\r
- Status = PciIoDevice->PciRootBridgeIo->Map (\r
- PciIoDevice->PciRootBridgeIo,\r
- (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_OPERATION) Operation,\r
- HostAddress,\r
- NumberOfBytes,\r
- DeviceAddress,\r
- Mapping\r
- );\r
-\r
- if (EFI_ERROR (Status)) {\r
- ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_CONTROLLER_ERROR);\r
- }\r
-\r
- return Status;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PciIoUnmap (\r
- IN EFI_PCI_IO_PROTOCOL *This,\r
- IN VOID *Mapping\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Unmaps a memory region for DMA\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: This - add argument and description to function comment\r
-// TODO: Mapping - add argument and description to function comment\r
-{\r
- EFI_STATUS Status;\r
- PCI_IO_DEVICE *PciIoDevice;\r
-\r
- PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r
-\r
- Status = PciIoDevice->PciRootBridgeIo->Unmap (\r
- PciIoDevice->PciRootBridgeIo,\r
- Mapping\r
- );\r
-\r
- if (EFI_ERROR (Status)) {\r
- ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_CONTROLLER_ERROR);\r
- }\r
-\r
- return Status;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PciIoAllocateBuffer (\r
- IN EFI_PCI_IO_PROTOCOL *This,\r
- IN EFI_ALLOCATE_TYPE Type,\r
- IN EFI_MEMORY_TYPE MemoryType,\r
- IN UINTN Pages,\r
- OUT VOID **HostAddress,\r
- IN UINT64 Attributes\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Allocates a common buffer for DMA\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: This - add argument and description to function comment\r
-// TODO: Type - add argument and description to function comment\r
-// TODO: MemoryType - add argument and description to function comment\r
-// TODO: Pages - add argument and description to function comment\r
-// TODO: HostAddress - add argument and description to function comment\r
-// TODO: Attributes - add argument and description to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-{\r
- EFI_STATUS Status;\r
- PCI_IO_DEVICE *PciIoDevice;\r
-\r
- if (Attributes &\r
- (~(EFI_PCI_ATTRIBUTE_MEMORY_WRITE_COMBINE | EFI_PCI_ATTRIBUTE_MEMORY_CACHED))) {\r
- return EFI_UNSUPPORTED;\r
- }\r
-\r
- PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r
-\r
- if (PciIoDevice->Attributes & EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE) {\r
- Attributes |= EFI_PCI_ATTRIBUTE_DUAL_ADDRESS_CYCLE;\r
- }\r
-\r
- Status = PciIoDevice->PciRootBridgeIo->AllocateBuffer (\r
- PciIoDevice->PciRootBridgeIo,\r
- Type,\r
- MemoryType,\r
- Pages,\r
- HostAddress,\r
- Attributes\r
- );\r
-\r
- if (EFI_ERROR (Status)) {\r
- ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_CONTROLLER_ERROR);\r
- }\r
-\r
- return Status;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PciIoFreeBuffer (\r
- IN EFI_PCI_IO_PROTOCOL *This,\r
- IN UINTN Pages,\r
- IN VOID *HostAddress\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Frees a common buffer \r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: This - add argument and description to function comment\r
-// TODO: Pages - add argument and description to function comment\r
-// TODO: HostAddress - add argument and description to function comment\r
-{\r
- EFI_STATUS Status;\r
- PCI_IO_DEVICE *PciIoDevice;\r
-\r
- PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r
-\r
- Status = PciIoDevice->PciRootBridgeIo->FreeBuffer (\r
- PciIoDevice->PciRootBridgeIo,\r
- Pages,\r
- HostAddress\r
- );\r
-\r
- if (EFI_ERROR (Status)) {\r
- ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_CONTROLLER_ERROR);\r
- }\r
-\r
- return Status;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PciIoFlush (\r
- IN EFI_PCI_IO_PROTOCOL *This\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Flushes a DMA buffer\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: This - add argument and description to function comment\r
-{\r
- EFI_STATUS Status;\r
- PCI_IO_DEVICE *PciIoDevice;\r
-\r
- PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r
-\r
- Status = PciIoDevice->PciRootBridgeIo->Flush (\r
- PciIoDevice->PciRootBridgeIo\r
- );\r
- if (EFI_ERROR (Status)) {\r
- ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_CONTROLLER_ERROR);\r
- }\r
-\r
- return Status;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PciIoGetLocation (\r
- IN EFI_PCI_IO_PROTOCOL *This,\r
- OUT UINTN *Segment,\r
- OUT UINTN *Bus,\r
- OUT UINTN *Device,\r
- OUT UINTN *Function\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Gets a PCI device's current bus number, device number, and function number.\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: This - add argument and description to function comment\r
-// TODO: Segment - add argument and description to function comment\r
-// TODO: Bus - add argument and description to function comment\r
-// TODO: Device - add argument and description to function comment\r
-// TODO: Function - add argument and description to function comment\r
-// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
-// TODO: EFI_SUCCESS - add return value to function comment\r
-{\r
- PCI_IO_DEVICE *PciIoDevice;\r
-\r
- PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r
-\r
- if (Segment == NULL || Bus == NULL || Device == NULL || Function == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- *Segment = PciIoDevice->PciRootBridgeIo->SegmentNumber;\r
- *Bus = PciIoDevice->BusNumber;\r
- *Device = PciIoDevice->DeviceNumber;\r
- *Function = PciIoDevice->FunctionNumber;\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-BOOLEAN\r
-CheckBarType (\r
- IN PCI_IO_DEVICE *PciIoDevice,\r
- UINT8 BarIndex,\r
- PCI_BAR_TYPE BarType\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Sets a PCI controllers attributes on a resource range\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: PciIoDevice - add argument and description to function comment\r
-// TODO: BarIndex - add argument and description to function comment\r
-// TODO: BarType - add argument and description to function comment\r
-{\r
- switch (BarType) {\r
-\r
- case PciBarTypeMem:\r
-\r
- if (PciIoDevice->PciBar[BarIndex].BarType != PciBarTypeMem32 &&\r
- PciIoDevice->PciBar[BarIndex].BarType != PciBarTypePMem32 &&\r
- PciIoDevice->PciBar[BarIndex].BarType != PciBarTypePMem64 &&\r
- PciIoDevice->PciBar[BarIndex].BarType != PciBarTypeMem64 ) {\r
- return FALSE;\r
- }\r
-\r
- return TRUE;\r
-\r
- case PciBarTypeIo:\r
- if (PciIoDevice->PciBar[BarIndex].BarType != PciBarTypeIo32 &&\r
- PciIoDevice->PciBar[BarIndex].BarType != PciBarTypeIo16){\r
- return FALSE;\r
- }\r
-\r
- return TRUE;\r
-\r
- default:\r
- break;\r
- }\r
-\r
- return FALSE;\r
-}\r
-\r
-EFI_STATUS\r
-ModifyRootBridgeAttributes (\r
- IN PCI_IO_DEVICE *PciIoDevice,\r
- IN UINT64 Attributes,\r
- IN EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION Operation\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Set new attributes to a Root Bridge\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: PciIoDevice - add argument and description to function comment\r
-// TODO: Attributes - add argument and description to function comment\r
-// TODO: Operation - add argument and description to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-// TODO: EFI_SUCCESS - add return value to function comment\r
-{\r
- UINT64 PciRootBridgeSupports;\r
- UINT64 PciRootBridgeAttributes;\r
- UINT64 NewPciRootBridgeAttributes;\r
- EFI_STATUS Status;\r
-\r
- //\r
- // Get the current attributes of this PCI device's PCI Root Bridge\r
- //\r
- Status = PciIoDevice->PciRootBridgeIo->GetAttributes (\r
- PciIoDevice->PciRootBridgeIo,\r
- &PciRootBridgeSupports,\r
- &PciRootBridgeAttributes\r
- );\r
- if (EFI_ERROR (Status)) {\r
- return EFI_UNSUPPORTED;\r
- }\r
- \r
- //\r
- // Record the new attribute of the Root Bridge\r
- //\r
- if (Operation == EfiPciIoAttributeOperationEnable) {\r
- NewPciRootBridgeAttributes = PciRootBridgeAttributes | Attributes;\r
- } else {\r
- NewPciRootBridgeAttributes = PciRootBridgeAttributes & (~Attributes);\r
- }\r
- \r
- //\r
- // Call the PCI Root Bridge to attempt to modify the attributes\r
- //\r
- if (NewPciRootBridgeAttributes ^ PciRootBridgeAttributes) {\r
-\r
- Status = PciIoDevice->PciRootBridgeIo->SetAttributes (\r
- PciIoDevice->PciRootBridgeIo,\r
- NewPciRootBridgeAttributes,\r
- NULL,\r
- NULL\r
- );\r
- if (EFI_ERROR (Status)) {\r
- //\r
- // The PCI Root Bridge could not modify the attributes, so return the error.\r
- //\r
- return EFI_UNSUPPORTED;\r
- }\r
- }\r
- \r
- //\r
- // Also update the attributes for this Root Bridge structure\r
- //\r
- PciIoDevice->Attributes = NewPciRootBridgeAttributes;\r
- return EFI_SUCCESS;\r
-\r
-}\r
-\r
-EFI_STATUS\r
-SupportPaletteSnoopAttributes (\r
- IN PCI_IO_DEVICE *PciIoDevice,\r
- IN EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION Operation\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Check whether this device can be enable/disable to snoop\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: PciIoDevice - add argument and description to function comment\r
-// TODO: Operation - add argument and description to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-// TODO: EFI_SUCCESS - add return value to function comment\r
-// TODO: EFI_SUCCESS - add return value to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-// TODO: EFI_SUCCESS - add return value to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-// TODO: EFI_SUCCESS - add return value to function comment\r
-{\r
- PCI_IO_DEVICE *Temp;\r
- UINT16 VGACommand;\r
-\r
- //\r
- // Snoop attribute can be only modified by GFX\r
- //\r
- if (!IS_PCI_GFX (&PciIoDevice->Pci)) {\r
- return EFI_UNSUPPORTED;\r
- }\r
-\r
- //\r
- // Get the boot VGA on the same segement\r
- //\r
- Temp = ActiveVGADeviceOnTheSameSegment (PciIoDevice);\r
-\r
- if (!Temp) {\r
- //\r
- // If there is no VGA device on the segement, set\r
- // this graphics card to decode the palette range\r
- //\r
- return EFI_SUCCESS;\r
- }\r
- \r
- //\r
- // Check these two agents are on the same path\r
- //\r
- if (!PciDevicesOnTheSamePath (Temp, PciIoDevice)) {\r
- //\r
- // they are not on the same path, so snoop can be enabled or disabled\r
- //\r
- return EFI_SUCCESS;\r
- }\r
- //\r
- // Check if they are on the same bus\r
- //\r
- if (Temp->Parent == PciIoDevice->Parent) {\r
-\r
- PciReadCommandRegister (Temp, &VGACommand);\r
-\r
- //\r
- // If they are on the same bus, either one can\r
- // be set to snoop, the other set to decode\r
- //\r
- if (VGACommand & EFI_PCI_COMMAND_VGA_PALETTE_SNOOP) {\r
- //\r
- // VGA has set to snoop, so GFX can be only set to disable snoop\r
- //\r
- if (Operation == EfiPciIoAttributeOperationEnable) {\r
- return EFI_UNSUPPORTED;\r
- }\r
- } else {\r
- //\r
- // VGA has disabled to snoop, so GFX can be only enabled\r
- //\r
- if (Operation == EfiPciIoAttributeOperationDisable) {\r
- return EFI_UNSUPPORTED;\r
- }\r
- }\r
-\r
- return EFI_SUCCESS;\r
- }\r
- \r
- //\r
- // If they are on the same path but on the different bus\r
- // The first agent is set to snoop, the second one set to\r
- // decode\r
- //\r
- \r
- if (Temp->BusNumber < PciIoDevice->BusNumber) {\r
- //\r
- // GFX should be set to decode\r
- //\r
- if (Operation == EfiPciIoAttributeOperationDisable) {\r
- PciEnableCommandRegister (Temp, EFI_PCI_COMMAND_VGA_PALETTE_SNOOP);\r
- Temp->Attributes |= EFI_PCI_COMMAND_VGA_PALETTE_SNOOP;\r
- } else {\r
- return EFI_UNSUPPORTED;\r
- }\r
-\r
- } else {\r
- //\r
- // GFX should be set to snoop\r
- //\r
- if (Operation == EfiPciIoAttributeOperationEnable) {\r
- PciDisableCommandRegister (Temp, EFI_PCI_COMMAND_VGA_PALETTE_SNOOP);\r
- Temp->Attributes &= (~EFI_PCI_COMMAND_VGA_PALETTE_SNOOP);\r
- } else {\r
- return EFI_UNSUPPORTED;\r
- }\r
-\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PciIoAttributes (\r
- IN EFI_PCI_IO_PROTOCOL * This,\r
- IN EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION Operation,\r
- IN UINT64 Attributes,\r
- OUT UINT64 *Result OPTIONAL\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: This - add argument and description to function comment\r
-// TODO: Operation - add argument and description to function comment\r
-// TODO: Attributes - add argument and description to function comment\r
-// TODO: Result - add argument and description to function comment\r
-// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
-// TODO: EFI_SUCCESS - add return value to function comment\r
-// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
-// TODO: EFI_SUCCESS - add return value to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-// TODO: EFI_SUCCESS - add return value to function comment\r
-// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-{\r
- EFI_STATUS Status;\r
-\r
- PCI_IO_DEVICE *PciIoDevice;\r
- PCI_IO_DEVICE *UpStreamBridge;\r
- PCI_IO_DEVICE *Temp;\r
-\r
- UINT64 Supports;\r
- UINT64 UpStreamAttributes;\r
- UINT16 BridgeControl;\r
- UINT16 Command;\r
-\r
- PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r
-\r
- switch (Operation) {\r
- case EfiPciIoAttributeOperationGet:\r
- if (Result == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- *Result = PciIoDevice->Attributes;\r
- return EFI_SUCCESS;\r
-\r
- case EfiPciIoAttributeOperationSupported:\r
- if (Result == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- *Result = PciIoDevice->Supports;\r
- return EFI_SUCCESS;\r
-\r
- case EfiPciIoAttributeOperationSet:\r
- Status = PciIoDevice->PciIo.Attributes (\r
- &(PciIoDevice->PciIo),\r
- EfiPciIoAttributeOperationEnable,\r
- Attributes,\r
- NULL\r
- );\r
- if (EFI_ERROR (Status)) {\r
- return EFI_UNSUPPORTED;\r
- }\r
-\r
- Status = PciIoDevice->PciIo.Attributes (\r
- &(PciIoDevice->PciIo),\r
- EfiPciIoAttributeOperationDisable,\r
- (~Attributes) & (PciIoDevice->Supports),\r
- NULL\r
- );\r
- if (EFI_ERROR (Status)) {\r
- return EFI_UNSUPPORTED;\r
- }\r
-\r
- return EFI_SUCCESS;\r
-\r
- case EfiPciIoAttributeOperationEnable:\r
- case EfiPciIoAttributeOperationDisable:\r
- break;\r
-\r
- default:\r
- return EFI_INVALID_PARAMETER;\r
- }\r
- //\r
- // Just a trick for ENABLE attribute\r
- //\r
- if ((Attributes & EFI_PCI_DEVICE_ENABLE) == EFI_PCI_DEVICE_ENABLE) {\r
- Attributes &= (PciIoDevice->Supports);\r
-\r
- //\r
- // Raise the EFI_P_PC_ENABLE Status code\r
- //\r
- REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r
- EFI_PROGRESS_CODE,\r
- EFI_IO_BUS_PCI | EFI_P_PC_ENABLE,\r
- PciIoDevice->DevicePath\r
- );\r
- }\r
-\r
- //\r
- // If no attributes can be supported, then return.\r
- // Otherwise, set the attributes that it can support.\r
- //\r
- Supports = (PciIoDevice->Supports) & Attributes;\r
- if (Supports != Attributes) {\r
- return EFI_UNSUPPORTED;\r
- }\r
- \r
- //\r
- // For Root Bridge, just call RootBridgeIo to set attributes;\r
- //\r
- if (!PciIoDevice->Parent) {\r
- Status = ModifyRootBridgeAttributes (PciIoDevice, Attributes, Operation);\r
- return Status;\r
- }\r
-\r
- Command = 0;\r
- BridgeControl = 0;\r
-\r
- //\r
- // Check VGA and VGA16, they can not be set at the same time\r
- //\r
- if (((Attributes & EFI_PCI_IO_ATTRIBUTE_VGA_IO) &&\r
- (Attributes & EFI_PCI_IO_ATTRIBUTE_VGA_IO_16)) ||\r
- ((Attributes & EFI_PCI_IO_ATTRIBUTE_VGA_IO) &&\r
- (Attributes & EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16)) ||\r
- ((Attributes & EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO) &&\r
- (Attributes & EFI_PCI_IO_ATTRIBUTE_VGA_IO_16)) ||\r
- ((Attributes & EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO) &&\r
- (Attributes & EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16)) ) {\r
- return EFI_UNSUPPORTED;\r
- }\r
-\r
- //\r
- // For PPB & P2C, set relevant attribute bits\r
- //\r
- if (IS_PCI_BRIDGE (&PciIoDevice->Pci) || IS_CARDBUS_BRIDGE (&PciIoDevice->Pci)) {\r
-\r
- if (Attributes & (EFI_PCI_IO_ATTRIBUTE_VGA_IO | EFI_PCI_IO_ATTRIBUTE_VGA_IO_16)) {\r
- BridgeControl |= EFI_PCI_BRIDGE_CONTROL_VGA;\r
- }\r
-\r
- if (Attributes & EFI_PCI_IO_ATTRIBUTE_ISA_IO) {\r
- BridgeControl |= EFI_PCI_BRIDGE_CONTROL_ISA;\r
- }\r
-\r
- if (Attributes & (EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO | EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16)) {\r
- Command |= EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO;\r
- }\r
-\r
- if (Attributes & (EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16 | EFI_PCI_IO_ATTRIBUTE_VGA_IO_16)) {\r
- BridgeControl |= EFI_PCI_BRIDGE_CONTROL_VGA_16;\r
- }\r
-\r
- } else {\r
- //\r
- // Do with the attributes on VGA\r
- // Only for VGA's legacy resource, we just can enable once.\r
- //\r
- if (Attributes &\r
- (EFI_PCI_IO_ATTRIBUTE_VGA_IO |\r
- EFI_PCI_IO_ATTRIBUTE_VGA_IO_16 |\r
- EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY)) {\r
- //\r
- // Check if a VGA has been enabled before enabling a new one\r
- //\r
- if (Operation == EfiPciIoAttributeOperationEnable) {\r
- //\r
- // Check if there have been an active VGA device on the same segment\r
- //\r
- Temp = ActiveVGADeviceOnTheSameSegment (PciIoDevice);\r
- if (Temp && Temp != PciIoDevice) {\r
- //\r
- // An active VGA has been detected, so can not enable another\r
- //\r
- return EFI_UNSUPPORTED;\r
- }\r
- }\r
- }\r
- \r
- //\r
- // Do with the attributes on GFX\r
- //\r
- if (Attributes & (EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO | EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16)) {\r
-\r
- if (Operation == EfiPciIoAttributeOperationEnable) {\r
- //\r
- // Check if snoop can be enabled in current configuration\r
- //\r
- Status = SupportPaletteSnoopAttributes (PciIoDevice, Operation);\r
-\r
- if (EFI_ERROR (Status)) {\r
- \r
- //\r
- // Enable operation is forbidden, so mask the bit in attributes\r
- // so as to keep consistent with the actual Status\r
- //\r
- // Attributes &= (~EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO);\r
- //\r
- //\r
- //\r
- return EFI_UNSUPPORTED;\r
-\r
- }\r
- }\r
-\r
- //\r
- // It can be supported, so get ready to set the bit\r
- //\r
- Command |= EFI_PCI_COMMAND_VGA_PALETTE_SNOOP;\r
- }\r
- }\r
-\r
- if (Attributes & EFI_PCI_IO_ATTRIBUTE_IO) {\r
- Command |= EFI_PCI_COMMAND_IO_SPACE;\r
- }\r
-\r
- if (Attributes & EFI_PCI_IO_ATTRIBUTE_MEMORY) {\r
- Command |= EFI_PCI_COMMAND_MEMORY_SPACE;\r
- }\r
-\r
- if (Attributes & EFI_PCI_IO_ATTRIBUTE_BUS_MASTER) {\r
- Command |= EFI_PCI_COMMAND_BUS_MASTER;\r
- }\r
- //\r
- // The upstream bridge should be also set to revelant attribute\r
- // expect for IO, Mem and BusMaster\r
- //\r
- UpStreamAttributes = Attributes & \r
- (~(EFI_PCI_IO_ATTRIBUTE_IO |\r
- EFI_PCI_IO_ATTRIBUTE_MEMORY |\r
- EFI_PCI_IO_ATTRIBUTE_BUS_MASTER\r
- )\r
- );\r
- UpStreamBridge = PciIoDevice->Parent;\r
-\r
- if (Operation == EfiPciIoAttributeOperationEnable) {\r
- //\r
- // Enable relevant attributes to command register and bridge control register\r
- //\r
- Status = PciEnableCommandRegister (PciIoDevice, Command);\r
- if (BridgeControl) {\r
- Status = PciEnableBridgeControlRegister (PciIoDevice, BridgeControl);\r
- }\r
-\r
- PciIoDevice->Attributes |= Attributes;\r
-\r
- //\r
- // Enable attributes of the upstream bridge\r
- //\r
- Status = UpStreamBridge->PciIo.Attributes (\r
- &(UpStreamBridge->PciIo),\r
- EfiPciIoAttributeOperationEnable,\r
- UpStreamAttributes,\r
- NULL\r
- );\r
- } else {\r
- \r
- //\r
- // Disable relevant attributes to command register and bridge control register\r
- //\r
- Status = PciDisableCommandRegister (PciIoDevice, Command);\r
- if (BridgeControl) {\r
- Status = PciDisableBridgeControlRegister (PciIoDevice, BridgeControl);\r
- }\r
-\r
- PciIoDevice->Attributes &= (~Attributes);\r
- Status = EFI_SUCCESS;\r
-\r
- }\r
-\r
- if (EFI_ERROR (Status)) {\r
- ReportErrorStatusCode (PciIoDevice, EFI_IO_BUS_PCI | EFI_IOB_EC_CONTROLLER_ERROR);\r
- }\r
-\r
- return Status;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PciIoGetBarAttributes (\r
- IN EFI_PCI_IO_PROTOCOL * This,\r
- IN UINT8 BarIndex,\r
- OUT UINT64 *Supports, OPTIONAL\r
- OUT VOID **Resources OPTIONAL\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: This - add argument and description to function comment\r
-// TODO: BarIndex - add argument and description to function comment\r
-// TODO: Supports - add argument and description to function comment\r
-// TODO: Resources - add argument and description to function comment\r
-// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-// TODO: EFI_OUT_OF_RESOURCES - add return value to function comment\r
-// TODO: EFI_SUCCESS - add return value to function comment\r
-{\r
-\r
- UINT8 *Configuration;\r
- UINT8 NumConfig;\r
- PCI_IO_DEVICE *PciIoDevice;\r
- EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Ptr;\r
- EFI_ACPI_END_TAG_DESCRIPTOR *PtrEnd;\r
-\r
- NumConfig = 0;\r
-\r
- PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r
-\r
- if (Supports == NULL && Resources == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (BarIndex >= PCI_MAX_BAR) {\r
- return EFI_UNSUPPORTED;\r
- }\r
-\r
- //\r
- // This driver does not support modifications to the WRITE_COMBINE or\r
- // CACHED attributes for BAR ranges.\r
- //\r
- if (Supports != NULL) {\r
- *Supports = PciIoDevice->Supports & EFI_PCI_IO_ATTRIBUTE_MEMORY_CACHED & EFI_PCI_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE;\r
- }\r
-\r
- if (Resources != NULL) {\r
-\r
- if (PciIoDevice->PciBar[BarIndex].BarType != PciBarTypeUnknown) {\r
- NumConfig = 1;\r
- }\r
-\r
- Configuration = AllocatePool (sizeof (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR) * NumConfig + sizeof (EFI_ACPI_END_TAG_DESCRIPTOR));\r
- if (Configuration == NULL) {\r
- return EFI_OUT_OF_RESOURCES;\r
- }\r
-\r
- ZeroMem (\r
- Configuration,\r
- sizeof (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR) * NumConfig + sizeof (EFI_ACPI_END_TAG_DESCRIPTOR)\r
- );\r
-\r
- Ptr = (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *) Configuration;\r
-\r
- if (NumConfig == 1) {\r
- Ptr->Desc = ACPI_ADDRESS_SPACE_DESCRIPTOR;\r
- Ptr->Len = sizeof (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR) - 3;\r
-\r
- Ptr->AddrRangeMin = PciIoDevice->PciBar[BarIndex].BaseAddress;\r
- Ptr->AddrLen = PciIoDevice->PciBar[BarIndex].Length;\r
- Ptr->AddrRangeMax = PciIoDevice->PciBar[BarIndex].Alignment;\r
-\r
- switch (PciIoDevice->PciBar[BarIndex].BarType) {\r
- case PciBarTypeIo16:\r
- case PciBarTypeIo32:\r
- //\r
- // Io\r
- //\r
- Ptr->ResType = ACPI_ADDRESS_SPACE_TYPE_IO;\r
- break;\r
-\r
- case PciBarTypeMem32:\r
- //\r
- // Mem\r
- //\r
- Ptr->ResType = ACPI_ADDRESS_SPACE_TYPE_MEM;\r
- //\r
- // 32 bit\r
- //\r
- Ptr->AddrSpaceGranularity = 32;\r
- break;\r
-\r
- case PciBarTypePMem32:\r
- //\r
- // Mem\r
- //\r
- Ptr->ResType = ACPI_ADDRESS_SPACE_TYPE_MEM;\r
- //\r
- // prefechable\r
- //\r
- Ptr->SpecificFlag = 0x6;\r
- //\r
- // 32 bit\r
- //\r
- Ptr->AddrSpaceGranularity = 32;\r
- break;\r
-\r
- case PciBarTypeMem64:\r
- //\r
- // Mem\r
- //\r
- Ptr->ResType = ACPI_ADDRESS_SPACE_TYPE_MEM;\r
- //\r
- // 64 bit\r
- //\r
- Ptr->AddrSpaceGranularity = 64;\r
- break;\r
-\r
- case PciBarTypePMem64:\r
- //\r
- // Mem\r
- //\r
- Ptr->ResType = ACPI_ADDRESS_SPACE_TYPE_MEM;\r
- //\r
- // prefechable\r
- //\r
- Ptr->SpecificFlag = 0x6;\r
- //\r
- // 64 bit\r
- //\r
- Ptr->AddrSpaceGranularity = 64;\r
- break;\r
-\r
- default:\r
- break;\r
- }\r
-\r
- Ptr = (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *) ((UINT8 *) Ptr + sizeof (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR));\r
- }\r
- \r
- //\r
- // put the checksum\r
- //\r
- PtrEnd = (EFI_ACPI_END_TAG_DESCRIPTOR *) ((UINT8 *) Ptr);\r
- PtrEnd->Desc = ACPI_END_TAG_DESCRIPTOR;\r
- PtrEnd->Checksum = 0;\r
-\r
- *Resources = Configuration;\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-PciIoSetBarAttributes (\r
- IN EFI_PCI_IO_PROTOCOL *This,\r
- IN UINT64 Attributes,\r
- IN UINT8 BarIndex,\r
- IN OUT UINT64 *Offset,\r
- IN OUT UINT64 *Length\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: This - add argument and description to function comment\r
-// TODO: Attributes - add argument and description to function comment\r
-// TODO: BarIndex - add argument and description to function comment\r
-// TODO: Offset - add argument and description to function comment\r
-// TODO: Length - add argument and description to function comment\r
-// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-// TODO: EFI_UNSUPPORTED - add return value to function comment\r
-// TODO: EFI_SUCCESS - add return value to function comment\r
-{\r
- EFI_STATUS Status;\r
- PCI_IO_DEVICE *PciIoDevice;\r
- UINT64 NonRelativeOffset;\r
- UINT64 Supports;\r
-\r
- PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);\r
-\r
- //\r
- // Make sure Offset and Length are not NULL\r
- //\r
- if (Offset == NULL || Length == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (PciIoDevice->PciBar[BarIndex].BarType == PciBarTypeUnknown) {\r
- return EFI_UNSUPPORTED;\r
- }\r
- //\r
- // This driver does not support setting the WRITE_COMBINE or the CACHED attributes.\r
- // If Attributes is not 0, then return EFI_UNSUPPORTED.\r
- //\r
- Supports = PciIoDevice->Supports & EFI_PCI_IO_ATTRIBUTE_MEMORY_CACHED & EFI_PCI_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE;\r
-\r
- if (Attributes != (Attributes & Supports)) {\r
- return EFI_UNSUPPORTED;\r
- }\r
- //\r
- // Attributes must be supported. Make sure the BAR range describd by BarIndex, Offset, and\r
- // Length are valid for this PCI device.\r
- //\r
- NonRelativeOffset = *Offset;\r
- Status = PciIoVerifyBarAccess (\r
- PciIoDevice,\r
- BarIndex,\r
- PciBarTypeMem,\r
- EfiPciIoWidthUint8,\r
- (UINT32) *Length,\r
- &NonRelativeOffset\r
- );\r
- if (EFI_ERROR (Status)) {\r
- return EFI_UNSUPPORTED;\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-EFI_STATUS\r
-UpStreamBridgesAttributes (\r
- IN PCI_IO_DEVICE *PciIoDevice,\r
- IN EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION Operation,\r
- IN UINT64 Attributes\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: PciIoDevice - add argument and description to function comment\r
-// TODO: Operation - add argument and description to function comment\r
-// TODO: Attributes - add argument and description to function comment\r
-// TODO: EFI_SUCCESS - add return value to function comment\r
-{\r
- PCI_IO_DEVICE *Parent;\r
- EFI_PCI_IO_PROTOCOL *PciIo;\r
-\r
- Parent = PciIoDevice->Parent;\r
-\r
- while (Parent && IS_PCI_BRIDGE (&Parent->Pci)) {\r
-\r
- //\r
- // Get the PciIo Protocol\r
- //\r
- PciIo = &Parent->PciIo;\r
-\r
- PciIo->Attributes (PciIo, Operation, Attributes, NULL);\r
-\r
- Parent = Parent->Parent;\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-BOOLEAN\r
-PciDevicesOnTheSamePath (\r
- IN PCI_IO_DEVICE *PciDevice1,\r
- IN PCI_IO_DEVICE *PciDevice2\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
-Arguments:\r
-\r
-Returns:\r
-\r
- None\r
-\r
---*/\r
-// TODO: PciDevice1 - add argument and description to function comment\r
-// TODO: PciDevice2 - add argument and description to function comment\r
-{\r
- BOOLEAN Existed1;\r
- BOOLEAN Existed2;\r
-\r
- if (PciDevice1->Parent == PciDevice2->Parent) {\r
- return TRUE;\r
- }\r
-\r
- Existed1 = PciDeviceExisted (PciDevice1->Parent, PciDevice2);\r
- Existed2 = PciDeviceExisted (PciDevice2->Parent, PciDevice1);\r
-\r
- return (BOOLEAN) (Existed1 || Existed2);\r
-}\r
projects / mirror_edk2.git / blobdiff